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Патент USA US2080674

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May 18, 1937.
Filed July 12,_ ‘1955
Patented May 18, 1937
Frank Stanley Schade, Holyoke, Mass., assignor
to National Blank Book Company, Holyoke,
Mass, a corporation of Massachusetts
Application July 12, 1935, Serial N0. 30,971
8 Claims.
This invention relates to an improvement in
loose leaf books. Its object is to simplify the
construction and make a better book. The
means by which this is done will ?rst be dis
5 closed and then its distinguishing features point
ed out.
In the drawing,
Fig. l is a plan view of a single piece of book
cover material used as my foundation piece, for
10 example leather;
preferably is ?nished to harmonize with the
leather of the cover material. Portions 5 and 5
are bent over to lie on the inside of the back
panel leather portion 3. Ears '! and 8 are struck
up in portions 5 and 6, respectively, for attaching 5
the metallic loose leaf mechanism I0. I prefer
to shorten the length of portion 3 in the leather,
as shown in Fig. 1, just enough to have the bent
over ends of portion 4 in line with the edges of
covers I and 2 or a little below this line, see Fig. 10
Fig. 2 is an edge view of a single piece of metal,
aluminum for example, formed for assembly on
the back panel portion of the cover material;
Fig. 3 is a cross-section of the assembly after
15 the back panel cover material and metal portion
have been given a curved shape;
Fig. 4 is a plan view of the cover before the
loose leaf mechanism is attached;
Fig. 5 is a plan View, and
(Cl. 129—24)
Fig. 6 is an edge view of the ?nished book with
the loose leaf mechanism attached; and
Fig. 7 is a cross-section taken on line 1-1 of
Fig. 5 with the rings in open position.
a. The idea is to keep all metal inside this line
to- avoid protuberances.
The single piece of cover material shown in
Fig. 1 is assembled with the single piece of back
panel metal shown in Fig. 2. This assembly is 15
in ?at form. The ?at assembly of the back panel
is then preferably shaped by die pressure to the
form of Fig. 3. The dies have cut-away portions
to clear ears 1 and 8 so they may remain in struck
out position.
When the assembly is curved to the form of
Fig. 3 the leather is gripped between the curves
of. metal portion 4 and overlying portions 5 and
6. These curves serve to substantially stiffen the
whole metal piece which can be, therefore, of 25
The invention resides in the new combination
25 of elements. There is nothing new in the metal
lic loose leaf ring mechanism per se which I have
indicated at It and the parts of which can be
seen of one conventional form in Fig. 7. As is
well known, this form comprises a spring plate
of the dies ?xes and binds the parts together as
their form results in a su?iciently secure attach
ment ready for the mounting of the loose leaf
30 I0’, holding toggle plates l! which carry the
rings 42, all of which, except the rings, is covered
mechanism on ears 1 and 8 so that when these 30
ears are bent over the whole assembly is locked
up by a cover plate l 3. It is usual to operate
the toggle plates H as by lifting them with
pivoted toggle levers it, indicated in Fig. 5. The
35 rings may be closed by hand and this action will
lower toggle plates M. It will be understood
that the parts of the ring manipulating mecha
nism may be assembled in the trough-shaped
spring plate 50’ or disassembled after the spring
40 plate i0’ is fastened to the back panel of the
book. So, in my description, where I say the
mechanism it is fastened to the back panel, I
mean that spring plate 55' is fastened and the
rest of the ring manipulating mechanism is then
45 assembled in the spring plate. The construc
tion by which the cover, back panel, back panel
stiffener plate are made to carry the loose leaf
mechanism it will now be described.
The book illustrated is one that would be used
50 for carrying in the pocket. The two covers I
and 2 are, for example, of limp leather joined
by a back panel portion 3, all in one simple in
tegral piece. The metal piece of Fig. 2 is formed
to have portion ‘1 serve as an outside plate on
55 the back panel.
Its exposed face may be and
thin, light weight stock. The pressure assembly
together. And this attachment is made without
rivets or the like and without piercing either the
leather or metal. The material of the back panel
is left with unbroken surface.
A customary way to fasten the back panel
plate to limp cover material of this kind is to
rivet through the loose leaf structure, the limp
material, and the back metal or stiffener panel.
The objection is that the rivet heads show at 40
the back and mar the appearance of the book.
My construction avoids this trouble in a simple
When, according to my invention, the binding
case is ready to receive the loose leaf mechanism 45
ill, the latter is attached by ears 7 and 8 enter
ing appropriate slots in the back of said mecha
nism and bound thereto by bending the ears
down. This is indicated by dotted lines in Fig. 5.
The loose leaf mechanism (for example, the con- 50
ventional type having a spring plate, toggle
plates, and cover plate, as shown in Fig. 7) when
attached by the ears 1 and 8 to the spring plate
ill’ will hold the portions 5 and 6 ?at, and locked
in the position of Fig. 4. The toggle plates ll, 55
with hooks i2 and cover plate 13, are then as
sembled in the usual way.
Thus, at the end of r
the assembly operation it will be seen that all
metal parts have been attached and locked to
the back panel portion of the one-piece (leather,
for example) binding case, but without piercing
inwardly from the end bends.
- 3. In a loose leaf book construction, the com
bination of one piece of leather-like material in
the form of two covers and a back panel, a one
it at any part. And the metal band portion 4
with its overlapping portions 5 and 6 are abso
piece metal band having a width equal to the
lutely held in position by the superposed loose
leaf mechanism attached to portions 5 and 6.
In some prior constructions ears like ‘I and 8
are struck up from a metallic back panel passed
through the limp cover material and used to
fasten the loose leaf mechanism. But that leaves
15 openings in the exposed metal of the back panel
Where the ears are struck up.
ment to that portion of the said band lying on
the inside of the back panel, and means for mak
ing such attachment, said means being spaced
It will be noted that not only does my im
proved structure give a better outside book ap
pearance but also results in a better assembly
at the back of the book. The limp or weaker
material in the back panel is substantially en
width of the back panel, covering the outside
thereof in unbroken form and bent over the ends 10
to lie against the inside face of the back panel,
said band being stiffened by a transversely curved
form of the band and back panel, loose leaf
mechanism, fastened in the book on top of and
by attachment to the metal band, and means
for making said attachment at points spaced
from the end bends.
4. A loose leaf book comprising a rectangular
piece of leather-like material, a narrow band of
metal laid across said material centrally to make 20
a stiff back panel, said band being bent over the
ircled by a metallic band. This band is un ' edges of the material so as to lie on both sides
broken at the exposed back. It is bent over and thereof and for substantially the whole length
its free ends lie on the inside of the back panel. of the inside as well as the outside of the back 25
panel, and a loose leaf mechanism attached only
25 When the metallic loose leaf mechanism is at
to said bent-over ends of the band on the inside
tached to the inside portions 5 and 6, these por
tions are necessarily bound down to the exact face of the leather-like material, said bent-over
position desired. There is no possibility of the ends underlying the bottom part of the loose leaf
mechanism and attaching means spaced from the
metallic band moving out of place.
I have illustrated and described a particular ends of the back panel.
book made of one piece of leather, one metallic
encircling back panel band, and one metallic with the leather-like material and the band at
loose leaf structure. These parts as described the back panel being formed with a curved cross
can be made up for a ?ne quality loose leaf note
35 book to be carried in the pocket. The features
of the invention disclosed may be used to ad
_ vantage even Where the covers and back panel,
apart from the stiffening band, are made of
laminated material.
What I have disclosed is intended as an im
provement to give both manufacturer’s advan
tages in making the book and a better construc- '
tion for the book itself. The construction pro
vides an improved form for the book user’s ad
45 vantage.
What I claim is:
l. The combination of a binding case com
prising covers and an intermediate back panel,
a stiffener plate in the form of a band extended
50 longitudinally of and substantially all around
the back panel, said band comprising a single
piece with its ends brought substantially together
on the inside face of the back panel, a metallic
loose leaf structure fastened to the portion of the
55 stiffener plate lying on the inside face of the back
panel and means for fastening said structure to
the stiffener plate on top of the end portions
on the inside face of the back panel.
2. A loose leaf book comprising two covers
and a back panel all made of a single piece of
limp material, a long metallic band laid on the
outside of the back panel with opposite ends bent
over, the edges of the back panel to lie on the
inside of the back panel, a metallic loose leaf
65 structure mounted on top of the said bent-over
ends and fastened to the book solely by attach
section in all portions.
6. The structure of claim 4 in combination
with the leather-like material at the back panel
portion being notched Where the band is bent
over so as to keep the metal inside the edges of
such material.
'7. A loose leaf book having covers and a back
panel portion arranged in one sheet form, a plate
of curved cross-section having’ an unbroken por
tion covering the outside of the back panel por
tion and with its ends extending over opposite
ends of the back panel and returning along the
inside face thereof, said inside portions of the
plate having attaching means, and loose leaf
mechanism attached to said means.
8. A loose leaf ‘book comprising covers and
back panel in one sheet form, one band of thin 50
metal wrapped around the length of the back
panel on the outside and along substantially the
whole length along the inside of the back panel
to make a loop with the ends of the loop on the
inside face of the back panel, said metal band 55
being shaped to a curved cross-sectional form
and pinching the Wrapped back panel in such
form, and a metallic loose leaf mechanism at
tached solely to the inside portions of the band
so as to’ leave the outside of the band free'of
attaching means, said loose leaf mechanism rest
ing entirely on top of said loop ends substantially
as described.
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